Home / 3,220.35-4,443.87-1,803.81

Finding the Fourth Proportional to 3,220.35, 4,443.87 and 1,803.81

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Solution

The fourth proportional to 3,220.35, 4,443.87 and 1,803.81 is: 2,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.35 : 4,443.87 = 1,803.81 : x
  2. Step 2: Convert to fraction form
    3,220.35/4,443.87 = 1,803.81/x
  3. Step 3: Cross multiply
    3,220.35x = 4,443.87 × 1,803.81
  4. Step 4: Simplify right side
    3,220.35x = 8,015,897.14
  5. Step 5: Solve for x
    x = 8,015,897.14/3,220.35
  6. Step 6: Final answer
    x = 2,489.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.